XML 41 R71.htm IDEA: XBRL DOCUMENT v3.19.3
Net Loss Per Share - Reconciliation of Basic and Diluted Calculation (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Earnings Per Share [Abstract]                
Net loss $ (8,864) $ (8,605) $ (13,018) $ (15,771) $ (3,438) $ (12,236) $ (30,487) $ (31,445)
Weighted average shares:                
Basic shares (in shares) 37,436     36,904     37,382 37,410
Effect of dilutive securities—options and warrants outstanding (in shares) 0     0     0 0
Diluted shares (in shares) 37,436     36,904     37,382 37,410
Net income (loss) per share - basic (in dollars per share) $ (0.24)     $ (0.43)     $ (0.82) $ (0.84)
Net income (loss) per share - diluted (in dollars per share) $ (0.24)     $ (0.43)     $ (0.82) $ (0.84)